I am always fascinated by images of the sun, all the detail that's hidden by the overwhelming brightness.
This image shows a filament—a formation of hot gas held aloft by the sun's magnetic field—that appeared at the beginning of September. This filament was approximately 350,000 kilometers long; filaments usually last for a few days before collapsing back into the sun.
Image Credit and Copyright: Alan Friedman (Averted Imagination)
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